package com.example.demo.config;

import com.example.demo.common.ResultAdvice;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**
 * Created with IntelliJ IDEA.
 * Description:  强制统一实现
 * User: yyx
 * Date: 2023-11-03
 * Time: 16:12
 */
@RestControllerAdvice
public class ResultAdviceMust implements ResponseBodyAdvice {

    @Override
    public boolean supports(MethodParameter returnType, Class converterType) {
        return true;//必须改为true 否则不执行下面的beforeBodyWrite方法!
    }

    @Override
    public Object beforeBodyWrite(Object body,
                                  MethodParameter returnType,
                                  MediaType selectedContentType,
                                  Class selectedConverterType,
                                  ServerHttpRequest request,
                                  ServerHttpResponse response) {
        if(body instanceof ResultAdvice){
            return body;
        }
        return ResultAdvice.success(body);
    }
}
